Your shopping cart is empty!
American Association of State and Highway Transportation Officials, 2022
Publisher: AASHTO
File Format: PDF
$36.00$73.00
Pages:5
File Size:1 file , 270 KB
Note:This product is unavailable in Ukraine, Russia, Belarus
This qualitative test method can be used to identify the presence of polyphosphoric acid (PPA) in asphalt binder or residue. If PPA is present in the binder, a blue color is developed in approximately 5 min. The test method is not quantitative, but it can detect PPA at concentrations as low as 0.1 percent. The test method can only determine the presence of phosphorus. It is not specific for the presence of PPA. A positive test result assumes that the phosphorus is from PPA. Any additive that contains phosphorus will give a false positive for the presence of PPA.
This standard was formerly designated as provisional standard TP 78.
Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use (ASTM Designation: A668/A668M-17)
$30.00 $61.00
Standard Specification for Welded Deformed Steel Bar Mats for Concrete Reinforcement (ASTM Designation: A184/A184M-17)
$27.00 $54.00
Standard Specification for High Friction Surface Treatment for Asphalt and Concrete Pavements Using Calcined Bauxite
$39.00 $78.00
Standard Specification for Reinforced Concrete Culvert, Storm Drain, and Sewer Pipe (ASTM Designation: C76-16)
$34.00 $69.00
